想知道普适性的政策怎么用双重差分模型,就是这个政策所有地方都实行,比如减负这个政策? 知乎 Template




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tomski想知道普适性的政策怎么用双重差分模型,就是这个政策所有地方都实行,比如减负这个政策? 知乎 coloring